981804630 has 16 divisors (see below), whose sum is σ = 2356331184. Its totient is φ = 261814560.

The previous prime is 981804619. The next prime is 981804631. The reversal of 981804630 is 36408189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981804631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16363381 + ... + 16363440.

It is an arithmetic number, because the mean of its divisors is an integer number (147270699).

Almost surely, 2^981804630 is an apocalyptic number.

981804630 is an abundant number, since it is smaller than the sum of its proper divisors (1374526554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

981804630 is a wasteful number, since it uses less digits than its factorization.

981804630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32726831.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 981804630 is about 31333.7618233113. The cubic root of 981804630 is about 993.8977145240.

The spelling of 981804630 in words is "nine hundred eighty-one million, eight hundred four thousand, six hundred thirty".